In a presentation Steve Bannon gave during a conference 2014, the Trump confidant ripped into big banks

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Trump campaign CEO Steve Bannon exits an elevator in the lobby of Trump Tower, November 11, 2016 in New York City. On Friday morning, Trump tweeted that he 'has a busy day in New York' and 'will soon be making some very important decisions on the people who will be running our government.'

Wall Street may find a testy relationship with Donald Trump's White House if comments by one of his senior advisers are any indication, CNBC reported.

In a presentation Steve Bannon gave during a conference at the Vatican in 2014, the Trump confidant ripped into big banks and their role in the 2008 financial crisis.

He rued that no one ever was held accountable, which he said helped fuel populist fury and groups like the tea party, according to a transcript of his remarks that Buzzfeed published Wednesday.

Bannon ultimately would take the reins of the Trump campaign and will be the White House chief strategist when Trump is sworn in Jan. 20.

Trump Booed Leaving New York Times

President Elect Donald Trump is booed as he walks through the lobby of The New York Times Building after a 75-minute meeting with Times journalists. The lobby of the Times building is open to the public, and a large crowd had gathered by the time he departed. (Published Tuesday, Nov. 22, 2016)